Streamlined QR scanner web camera

- No need to stop and start camera preview

src/views/ContactQRScanShowView.vue

@@ -152,30 +152,6 @@
           @camera-on="onCameraOn"
           @camera-off="onCameraOff"
         />
-
-        <div
-          class="absolute bottom-4 inset-x-0 flex justify-center items-center"
-        >
-          <!-- Camera Stop Button -->
-          <button
-            class="text-center text-slate-600 leading-none bg-white p-2 rounded-full drop-shadow-lg"
-            title="Stop camera"
-            @click="stopScanning"
-          >
-            <font-awesome icon="xmark" class="size-6" />
-          </button>
-        </div>
-      </div>
-      <div
-        v-else
-        class="flex items-center justify-center aspect-square overflow-hidden bg-slate-800 w-[90vw] max-w-[calc((100vh-env(safe-area-inset-top)-env(safe-area-inset-bottom))*0.4)] mx-auto"
-      >
-        <button
-          class="bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white text-lg px-3 py-2 rounded-lg"
-          @click="startScanning"
-        >
-          Scan QR Code
-        </button>
       </div>
     </div>
   </section>